Draft rigging



July s, 192s.

1,676,178 P. R. DRENNING DRAFT RIGGING Filed Jan. 21, 1925 lll-m l/ 77 Yumlm-u@ I Patented 'July 3, 1923.`v

tandem. i A

1 The Objetfqf'th'inventiig 'more 'spcify @2.11157 statedzis the structeid -andartahge'd zyilsfoj provl'def spacing "Spacing ,Standard Gf Spring? j -1 the; initil shock, and

which w1@ result, 'omerwisg l in cosjeqently @di antagepus thi,

lilith@ 'ffawings preferred Y@mbv@lindenoif ftheinyeion-f Sills anlcheligblates @man smarte@ for 'the yoke, mld sills; Secured @tween the sins-fis l isV located:whagygficushipningdem@ isemrtio'n of he raising" may b @hef-Sam@ f throughout. Formed integrally with the v casing at the intermediate portion thereof titions 12 and as further connected by, n cylindrical sleeve Vportion 16 having an openlcasing and the latter of which extend in' wardly from the cornersll. In. the present instance I have shown the'walls of the pai'- ing: 14'V therethrough to. serve as a.; guide 'for axially directing: a. longitudinally movable.

plunger 18 which fis4 arranged` within the casin: TheV outer )ortions of the casino' is .Y

illu-stratedas yformed with .openings 1,9 .be-

tween the wallor partition members 12 and 3, these openingsfbeing, for, convenience, in thev actualcastingof this form` of thefcase the specinc plunger guide 16 is not -anglessential feature asitis "conceivable that the ribs themselves may be ntilized asv'guides.

' VThe provisionof the combined spacing and abutment'means 11y within the'fca'sing defines compartments or vp'ofckets'20l imd21-` in vthe opposite. endfportions and these Vpockets are intended to receive standard G, springs 22jand 23. Y Progecting radiallyin- Vwardly from the corner-s` of Vthe pockets 20 and 21 are webs 2twhichserve as guides for the springs and which reinforce the casing. Located within the springs 22'v and 23 are supplemental springs 25 ofless length ,which function in a mannerl to be explained.

"Located within the compartment oi'fpoc'ket f 20, is a follower'26*.engaged-fby'the plunger 18 land engaging `against the inner end .ofthe spring 22 andnorm'ally in Contact. with. the

spacing' and abutnientrwall 12. The.' depth located entirely within the pocket@` 'The ably therebeyond.

ofthe pocket Y20` andthe thickness Vof the follower 26 are such that the spring 221s pocket 21 is of less Vdepth than `the pocket 2O so'that the .spring project'sconsider- VVhenthe device` is installed or .embodied within a draft gear, it lloedisposed,V as; illustrated, within the space 9i with theforf f Vfollowers' and the combined spacing'andV .abutment means. .will V correspond y'tclithe receiving pocket 'of a ward endof4 the casting 10 4 engaging.against the rear fac'eofthe 'front follower 5. Use 1sD made of ayoke liller27 which is arranged within'the rear end of the yokeandin v'en-.

gagement .with the: rearf'end :of the plunger 18L` VViththe device assembled or installed, as shown in Figure ,1, it is evident that there isa space 28 between the yoke lille'r and rear end.Y of the vcasing` 10. The parts'are normally in the position shownin Figures l and Y 2'andu`inder draft'the yoke moves:forward-'1 ly. compressingfthe spr1ngf`23 and moving y the plunger 18 and follower 26 to'compress ltionary against the front follower 5.

"with "the other springs. frontfollower '5 the spring 22, the casing 10 remaining sta- After the springs 22 and23 have been compressed to a certain extent, thesupplen'iental springs 25 will be engaged and.compressedfaloug Under buff, the

the casing 10V rearwardly, "they plunger 16 and follower 26 thereon remaining'stationary; The result is that the follower 26 will compress the spring22 between it and the rear face o'f the frontfollower 5 while the spring 23y is compres-sed .between the yoke filler 27 and tlieabutment wall 13;v '.lhe inif ment, has occurred `the supplen'iental springs movesV rearwaidly', forcing 25 will be engagedyand compressed., frlf 'the "strain Linder buff becomes!excessive..sothat' y the springs are compressed tothelpermi'ssible hm1t,vthe yokeliller v27 will, be engaged by .the adjacentend .of the casing', Vthe cas.. ing-:then becoming oracting as a selid`inedium between the followery 5 and" thel yokev filler` for` transmitting Ithe ,-strainf` directly to the back stop 8, .thuspreventinginjury to the springs and other parts'. "f u From the Aforegoing it c will that Ithave thus provided a very simple and efficient structure wherein standard G springs may be utilized and arranged in tan-y apparent dem to constitute lthe shock absorbing or cushioning` means in a draft gear.' [The casing-and the combined, spring spacingl andl abutment mean-s therewithin are' all an in.n i tegi al structure, the Y*parts beingV so braced bymeans of the'webs'or ribs as .to 'possess' the event of excessive strains.y

.J great strength and not be likely to' crush 'in Having nowv described 'my invention,

what I claimA is :l

l1. A draft of ,each ,lof said springs,

l gear'having springs arranged- Y 1n tandem, followers ata .corresponding end v means connecting j the follcwers vand extending axially through one spring, and integral combined spacingand abutment means located between and .l

engagingthe follower of one spring and the `adjacent end of the other spring and servi ing. to dlrect the connecting means indei pendently of the adjacent follower,whereby the combined length of both springs, VVboth length of 'the cushion 2. In a draft Vgear including yk, if

coupler-shank anda front' follower block,fa

cushion'device comprising a casing-located space' between 'said fronti-follower block and l `the rear end of the yoke, said casingl being withinv the vyoke and ofle'sslength vthan theA formed integrally with combined spacing and abutment 'means defining pocketsof dif` ferent -lengths'pwithin Ithe outer ends ofthe,

ein'.

f y1o and a plunger slidablymounted through and 4 longitudinally directed by said combined casing', springs located within saidpockets, the spring within the forward pocket being contained entirely "therewithin, andvv the-V spring within the rear pocket projecting said combined spacing and abutment means,

spacing and abutment means and axially of 'the rear spring with its endsengaging they rear face of the forward follower and thev forward face ofthe yoke filler.

3. In a cushioning/device for a draft gear,

an'elongated casing formed internally with spacedv wall members connected by webs andv constituting combined spacing and abut- Y ment means, the yprovision ofV said wall memi bers de ning pockets within the ends of the 'Y casing, springs located within said pockets,

therebeyond, a follower ldisposed against the outer end of said outwardly projecting spring,

a follower located within one pocket between the innerend of the spring thereinV and the adjacent wall member, the otherL ,pocket being `ofless length than the spring.

therein whereby the spring will project 'and a plunger directed byv and eX- l tending through said wall members and disposed between and vabutting against both followers. v Y 4.In a cushioning device for a draft gear,

an elongated casing formed internally'with spaced wall members connected by websiand .I

constituting combined ,spacing vand abut? l ment means, the provision of said wallmem-A v l v bers defining pockets within the lendsof the casing, springs located within said pockets,

a follower located within one pocket betweenV i i the inner end `of the, spring therein and the Vadjacent wall member, the other 'pocketbefy ing of less length than the spring therein whereby` the spring will project therebe-v yond, a followerdisposed against the outer' i end ofl said-outwardly projectingspring,y

`and al plunger disposed betweenV and abut-v ting against both followers, and supplemem `tal springs located within saidsprings and terminating short of the outer ends thereof.,

5. In a cushioning device for a draft gear,

'anelongatedcasing formed internally with spacedwall members. connected by webs and constituting. combined spring and .abutmentv means, said wall members defining pocketsk within thev ends of the casing, springs located within said pockets, a-follower'located within one pocket between the inner end of the spring therein and the adjacent wall member, the other pocket being ofv lessv e lengthr than the springtherein whereby the spring will project therebeyond, a follower disposed against the outer end offsaid out wardly projecting spring, and a plunger dis posed between and abutting yagainst both followers, the inner ends of said webs merging into a y sleeve portion constituting a vguide for said plunger. l In testimonywhereof'l affix my signature. 

